MONT BLAXC AXD THE MER DE GLACE. 



47 



path, and after them skips the shepherd-boy, with a similar 

 unconsciousness. 



Before reaching the Mauvais Pas, the Mer de Glace 

 changes its name to Glacier des Bois. The slope of its 

 bed becomes more rapid, and the crevasses yawn more 

 deeply, more numerously, and more irregularly. The 



I< K NEEDLES OF GLAC1KK DES BOIS, THE LOWER PART OF THE 

 MER DE GLACE. FROM A PHOTOGRAPH BY J. LEVY ET CIE., 



PARIS. 



huge crests of ice, cut across by other crevasses, become 

 converted into immense pyramids and needles of ice, 

 which bristle like porcupine quills over the greater part 

 of the surface. Those which assume a more columnar 

 form are locally known as seracs. Looking down upon 



